Types of Music

There are lots of types of Music. Everyone has their own categorization. But for me, there's music that

1. can go on forever in the background, thoroughly entertain me and yet not disturb me at all and even help me do whatever I'm doing
2. I have to concentrate on to really enjoy it
3. goes on in the background while having random conversations with friends. I find myself swearing now and then in the middle of these conversations in appreciation of the brilliant music
4. I use to show off my speakers and my sound card
5. I use to motivate my friends to listen to some real rock
6. etc.

Quite expectedly, a type of music keeps jumping across the categories which sometimes makes me appreciate it in a different way which in turn, weirdly, gives me a sense of satisfaction.